/Engine/Source/Runtime/Engine/Public/Net/NetDormantHolder.h
Retrieve stored set of replicated sub-objects of the given actor at the time of the last dormancy flush This data is cleared when the actor is processed by ReplicateActor
A map of network guids to weak object pointers
[UE::Net::FDormantObjectMap](API\Runtime\Engine\Net\FDormantObjectMap) & FindOrAddFlushedObjectsForActor ( [AActor](API\Runtime\Engine\GameFramework\AActor) * Actor )